Demountable rim.



BEST AVMLABLE C0?J` C. R. RAGSDALE. DEMOUNTABLE RiM. APPLICATION HLED FEB. .)1v9`i6.

Patented May1,1917.

IN VEN TOR A TTORN E YS @est AVAILABLE Cota` WTED PAET OFFICE.

CHARLES BEES HGSDLE, OF ST. LOUIS, MISSGURI.

JEMGUNTABLE RIM.

To all whom 'it may concern.'

` Be it known that l, @nannies linnn Raes- DALE, a citizen of the United States, and a residentof the city of St. Louis and State of Missouri, have invent-ed a new and Improved Demountalnle Bim, of which the following is a full, clear, and exact description.

My invention relates to demountable rims for the wheelso automobiles andother vehicles, and more particularly to that type of demountable rim'having means whereby to det-ach the tire :fromA the demountable rim without removing tlierirn from the wheel.

.and securing means constructed and ranged to cooperate with an unbeaded telly band, that is to say, a band presenting a flat outer surface extending to tlie extreme side edges.

The present ini-ention includes' also, a

" novel n'xeans to dctaclialily,secure the tire n the dcmountable rim.

Reference is to lie had to tlie accompanying drawings forming a part of this specilication in whicli'similar reference characters indicate corresponding parts in all the views.

Figure 1 is a transverse section of a demountalile rim and its appnrteminces einbodying my invention. the same being shown with a portion of a wheel and a. tire;

Fig. 2 is a fragmentary perspective View of a portion of the wheel, and showing felly attachments for securing the dei'nountable rim; 4

Fig. 3 is a fragmentary perspective view showing separated elements of the demountable rim; l

Fie. Llis a View similar to Fig. l but illus trating a slightly different form of the demonntable rim;

Fig. 5 is a view similar to Fig. d, showing the elements el the latter ligure assembled;

1n carrying out my invention in the form shown in Figs. l to the den'iountable rim 10 has an integral annular bead lief any approved shape at one side ofi tlie wheel,

preferably tlie inner side or side toward the vehicle body. At the opposite. side, the rim Specification of Letters yatent.

Patented May 1, 1917.

pplicaton ed February 17, 1918. Serial No. 78,858.

10 receives. a removable annular bead 12 to coaet with the bead 11 in retaining the tire A. l n

l provide a retaining rin 18, of novel form, which coacts with memoers on the adjacent edgeof the rim 10 to retain the re-y ineffable 'bead 12 in position. The said ring 13 is in general, angular in cross section presenting a lateral flange 14' and a radial flange 15. Atthe inner edge of the radial flange 15, at the inside of saidflangql form hooks 16 on said rim, the hooks being of L- shape' and integral at their bases with the flange 15. The liooks aredisposed in succession about the ring 13, and are approxi mately parallel with the lateral flange 14 and disposed radially inward-from the latter. The formation results, as clearly seen in Fig. 3, is an L-sliaped slot at each hook, said.

slots being complementary to the space between the lateral flange 1 4 and said hooks,

that is, the L-shape-d slotscommunicate radially with the annular space within the lateral flange 14. I v

To eo-act with the hooks 16, I provide on the adjacent edge of the rim 10, an annular series of lugs 17 extending radially inward beyond the inner 'surface of the said rim 10. The number `and the spacing of the lugs 17 conform to the positions of the hooks '16 so that when the. .removable bead 12 is placed on the rim 10t outside of the tire A,.the ring 13 may be placed on the' dia-cent edg l of the rim 10 outside ofsad bead 12. In fitling the ring 13 on'tlie-'rim l0, the edge of the latter is received in the annular space within the lateral flange l4, between the said flange and the, hooks 1G, and in such manner that the lugs 17 will be disposed in staggered relation to the said hooks and enter laterally the L-sliap'ed slots between the hooks. The ring 13 is now given a slight turning movement on. its axis` relativelyto tl'ie rim 10, whereby the hooks 16 will engageA at the inner side o'r" the. respective lugs 17 and prevent retrograde lateral movement of 'the ring 13. Upon the tire being inflated, the removable bead 12 will be pressed firmly against the adjacent edge of the lateral flange Mend 'nevent (.reeping movement of the ring 13.

lt will be aijiparent that the ring 13 may lee attached and detached with facility and d esijiateli in applying or removing the tireA from the deinountalele rim.

To receive a blow of a. hammer or the like, for shifting the ring, 13, eircumferentially,

essi AvAaAsLE copi there is formed a projection 14 on said ring at the angle'thereof.

face ot' a telly band 20, secured -in any-suit-A able manner to the telly' B of any approved form. It is to be observed 'that the `fel1y band 20 is `cylindrical and presents a flatonter surface extending to the extreme side y edges, there being'no beads on said band atY 20,

either side.

To coact with the beveled elements 18, I

employ plates 21 on the felly at one side of .the wheel and plates 22 at the opposite side, .thp latter plates preferably being at the front or outside of the wheel. The respec tive plates 21, are secured in opposite re-' lation by transverse bolts 23, and nuts 21,

said bolts passing throng-Ji the-telly, through bolt holes in the plates 2l', and through slots 25 in the plates 22.-"'llie`pa1lrs of plates correspond in number and, in' their locations about tlie wheelbvitll the number and spacing of' the plates 18 on..'. the` rim 10 so that a 'pair ot.' opposite plates; 21, 22, Will receive between theniva plate 18.

The plates, 21, 22, are disposed radially onA the telly7 B; at the outer end of each plate 21. the sinne/presents a llangev 26 disposed laterally inward, that is to say, toward thc opposite side of the wheel. Said flange 26 has a beveled inner edge corresponding with the bevel on the adjacent. side of a plate 18. Similarly the outer end of each plateis inlurned laterally and by reason of the slot 25, presents separate fianges 27, having in ner beveled edges-lcorresponding with the adjacent bevel of a plate 18.

The flanges` 2G, 2i", of the respective plates, 21, 22, thi-is extend between the flat unbeaded felly band 2O and the inner sur face .of the deinountable rim y10 and extend inwardly a sutlicieiitdistaiice to contact with the beveled sides of the plates 18.

An important purposeis served by forming Ithe slots in the plates 22 as the slots permit said plates to be entirely removed from the wheel without removing the bolts 23. It it becomes .necessary to run the car on the telly band, the plates 22 are quickly removed without having to remove the nuts 2% as the nuts are simply moved outward toward the end of the bolts and the bolts then pushed inward toward the car so that the bolt heads are released from contact with the inner plates 21 permitting these plates to beturned on the bolts 23 until the flanges 26,(*which ordinarily rest on the felly band are turned toward the wheel hub;

the bolts are now tightened -which hold. the

plates 21 in theinew position, 'and as the front or slotted plates 22 have been entirely removed the`flat headless telly band now y will run on the ground and with all of the` inner plates 22 outgof the way and not in contact with -the road. f When it is desired to demount the rim 10.-

'itis necessary only to loosen'the nuts 2l,

without entirely removing the latter from the bolts 23. The loosening of the nuts per mits the lateral movement of the plates 22 on the bolts 23 after which said plates may be moved radially inwardto the dotted-line position indicated'in Fig. 1, thereby permitting the demountable rim to clear the anges A 27 and be slipped vfiom the felly band 20.

The plates 22 inay'be secured inthe inner dotted line position by tightening up the nuts 24 to press the said plates against the i side of the telly. It will thus be seen' that it is 1 not necessary to wholly remove the plates 22 from the felly and bolts in deheldv on the felly in convenient position for again securingthe demountable rim in place on the wheel. The described construction 1 servesl to center the demountable, rim and the tire on the wheel by reason of the'wedging action fof the plates 21, 22, whereas a fellyv band with affront beaded edge, does not permit of the accurate-fitting of the deinountable rim to the wheel because the said rim can easily be forced out of proper aline- 'ment by reason of the said rim beingt'orced farther ontol the Said bead at one portion of the rim than at another.l

AThe strength and simplicity of the detaching means, consisting. of the' plates, 21, 22,and the coacting beveled surfaces on the deniountable rim, will be apparent. Also, it will be clear that the described ring 13, with the hooks 16, and the members 17 on the rini 10, result in a` strong construction that may be cheaply produced in addition to the -result of promoting simplicity in attaching and detaching 4the tire and insuring'accurzicy of adjustment without tedious manipulation.

-mounting-the rim 10, as the pilates maybe y y In Figs. 4and5, a modified means -or retaining the removable bead in position, is illustrated. In the modifie-d construction, however, the elements, 10, 11, 17, 18 and 19 are the same as previously described and hence are identified by the samecharacters. r1`he removable bead 12, is formed with a -base flange 12h extending laterally outward, The retaining ring 1.3a in the .inodiliedconstruction, isa split ring,vwhereas the ring,

18 may be either split orvot-lunbrokcn continuity. The ring 13? is substantially angular in cross section and comprises a radiaily disposed flange 15a and an inwardly extending lateral flange 16a, having means whereby the il ange serves the purpose of the hooks 16. Said flange 16a is at the inner periphery of the radiallange 15a and is adapted to overlap the adjacent edge of the demountable rim at the inner surface of the latter instead @of overlappin atl the outer surface as is done by the ange 14. A 4series of radial openings 16b is formed in the lateral vflange 16a. Said openings correspond in number, in position, and essentially in form, with the lugs 17 on the rim 10 toreceive the latter. The split ring 13a is contracted by overlapping the same at the ends and is then permitted to spring outwardly to engage the lugs 17 in the openings 16", lWhile the edge of the rim v10 is accommodated in the space `radially outward from the flange 16a. The` said vspace accommodates also, the lateral flange 12b on the bead 12a. To positively lock the split ring 18"L in engagement` with the lugs 17, a latch 28 is pivoted as at 29, at one end of the said ring and is adapted to engage beneath the head cfa pin 30 on the rim 10 at the inner side thereof, said pin being accommodated in a pin-hole formed by opposed depressions 31 in the respective ends of the ringla.

13a, the same coperates with the lugs 17 integral with the rim 10 and disposed radially finward on the latter. The L-sliaped slots, defined by the hooks 16, it Will be seen, constitute openings extending radially as do the openings 16b to accommodate the radially vdisposed lugs 17.

- f The construction of the rim leaves the latter perfectly plain at the surface and free lof all members` or formations at that edo'e on which the 'removable bead is secured, the arrangement resulting in simplifying the form of the retaining means and facilitating the placing and removing of the tire, and in In both forms of the retaining ring 13,v

addition promotes durability and economyvided with aplurality4 of bayonet slots for the reception of the respective radial lugs, a dependent headed pin on said rim, and a hook shaped latch pivoted to saidremovable bead member and adapted to engage said pin to hold said bead member in place.

2. A Wheel rim having a tire retaining bead at one edge and a plurality of in- Wardly directed radial lugs at its other edge, a tire retaining member removably held on said rim'at said last named edge, and a ring bearing on the' outer side of said tire retaining member having a member arranged parallel with said rim provided With a ,plu rality ol spaced bayonet slots for the reception of the respective radial lugs, said tire retaining member and said ring jointly forming a recess for the lastnamed edge of said rim, a dependent headed pin on said rim, and a hook shaped latch pivoted to said removable bead member and adapted to engage said pin to hold said bead member in place. t

In testimony whereof I have signed my naine to this specification in the presence of tWo subscribing Witnesses.

CHARLES REED RAGSDALE.

Witnesses:

' WILLIAM B. Howsn,

L. G. ALLEN. 

